Bunsen burner



C. T. KINSMAN.

BUNSEN BURNER.

APPLICATION FILED JUNE 7, 1920.

1,386,630, Pateniaed Aug. 9, 1921.

I 6 7 Zghuwwboc kard s. 27252722272 ///Z/ 65 eeaeao.

Bunsen BURNER.

Application filed June 7,

To all whom it may concern I Be it known that I, CHARLES T. KINSMAN, a citizen of the United States, and a resident of Binghamton, in the county of Broome and State of New York, have invented certain new and useful Improvements in Bunsen Burners, of which the following is a specification. The principal object of this invention is to provlde a burner adapted to consume gas, such as is manufactured from coal and like substances and used as a fuel for illuminating and heating, natural gas, or the gaseous vapors of gasolene, etc, together with or without a percentage of air, and capable of roducing an intense heat.

1? further object is to provide a burner having a perforated cap adapted to cause the flames to flare and spread over a relatively large area, the cap being readily removable when a flame .of smaller size'is desired, or a cap of different type substltuted, means being provided in the cap to thoroughly commingle the gaseous fuel and atmospheric air prior to its becoming ignited.

Another object is to provide a burnerin which the tubular stem is easily separated from the base in order to Permitcleansing the apparatus.

Other objects are to provide a burner of the Bunsen type, comprisedof few and simple parts, designed to present a'neat appearance, and which is unusually effective in its operation.

These object are attained by the novel construction, combination and arrangement of parts hereinafter described and shown in the accompanying drawings, forminga material part of this disclosure, and in which I Figure 1 is a partial side elevational and sectional view. of aburner made in accordance with the invention,

Fig. 2 is a top plan view of the same. V

Fig. 3 is a transverse sectional view, taken on line 3-3 of Fig. 1. s

Fig. 4 is a fragmentary sectional view showing a modification in construction.

Referring to the drawings in detail, the numeral 10 designates the relatively heavy base of a burner, the same being preferably circular, having a recessed bottom 11, and

a central raised standard 12. r

A raised radial boss 14 is formed integral with the base, extending from a point near Specification of Letters Patent. Patented Airg. 9, 19211.

1920. Serial no. 386,964.

the edge to the standard, and contains a bored opening 15 into which is tightly fitted the reduced end 16 of an adapter plug 17, having on 1ts extending portion a series of tandem cones 18, or like corrugations,

adapted to engage the interior of the hose (not shown) by which gas is delivered to the burner, the gas passing freely through a central opening 19 in the adapter.

The standard 12 contains a'bored opening 20, intersecting at its bottom with the .openlng 15, and screw-threaded atits upper end to receive the threaded lower end 21 of a hollow plug 22, the shoulder 23 of which upon the hollow plug 22, normally resting on the shouldered portion 23, anduis provided with opposed transverse openings 28, WlllCl'l, by rotating the stem, may be brought into register with the openings 24, orso adjusted as to cover them completely, thus controlling the admission of air.

This construction also permits of instantly lifting the stem from the base affording easy access'to the gas opening for cleaning, etc.

The stem is knurled or otherwise corrugated, as at 30, so as to be easily manually operated, and above the-knurling is a screw threaded portion 31, the same being engaged normally in a corresponding opening formed centrally in the lower part of a bushing 33'having an enlarged upper portion 34 tightly fitted to an annular shell 35 provided 'with an integral convexly curved cap 36.1:

The bushing portion 34 is further held in place within the shell by .a plurality of 2 pins 37, three being preferred, these pins being arranged tangentially of the axis of the apparatus and extended well within the shell, actin to break up, mix and blend 7 the gas anc air asthey pass upward to the cap, causing a gyratory effectv and very materially assisting in producing an effective gas mixture, tending at the same time, to prevent back firmgvor gniting the gas below and taking the place of metallic gauze usually employed for that purpose.

formed through the cap 36,"near its outer edge, ;the same being disposed at approximately fortyfive degrees from the central,

' axis, thus distributing the flame outwardly overaconsiderablearea.

One or more inner rows of; like perforatlons 39 are arranged inter acently and. a

central opening 40, preferably, presenting threerlobes as indicated, complete'the exits forthe gas, ignition taking place exteriorly of the cap;

ter opening, due to its larger area, causes the flame to concentrate at the top, the maximum heatof the entire flame being broughttov a focus at this central point, producing a con.

c'entrated flame, the'tip of which is used to heat small surfaces, while the broad body of the flame may be used in heating larger surfaces. 7

The thin sheet metal cap 36 and shell or casing .act-tolconvey a portion of the heat of the-flamesto the mixed gas'and air within the mixing chamber formed by them, pre

hastening combustion. i

heating the gas-while it 'is mixing, thereby place ofthe stem27 being threaded at. its ;upper end, it extends into'the bushing 33 Which .is formed with an interior annular flangeA'Q resting on the end of the stem as shown, w V V In either form. of. burner the entire head,"

including cap, pins and-bushing, make a tight joint'with the tube, preventing *fback firing, but can belquie'kly and easily rei moved from. the end ofthe tubular stem which then may beused as an ordinaryfBurisen burner.

.. -I n operation the gas tube having been engaged on the'adapter 17 the stemis turned;

on the plugto admit the proper amount of air and the burner ignited in the usual man ner, the flames being controlled bythe quan tity of gas and percentage of air, which obvious'ly may be; controlled by rotating the st'e'mto producethe desired'results. I 1

J- Should the burner become clogged by spilling material in it, it can be 'cleanedby removing the stem from base or cap from stem in an effective manner.

' V i 1. Ina burner of the type desoribed, .the

combination--"vvith' a burner tube, of-a mixor ing.chamber ha-ving a'convex to'p'contaiiiing a plurality of perforations adapted" to act as outlets;rneans for detachably engaging i said chamber to'said tube, said chamber rev;

ing] a sectional area of greater' magnitude than the tube, and a plurality of tangen- 'tially disposed pins fixed in said chamber The increased flow of gas through the cenadaptedto intercept a passing stream of v gases to deflect'and intimately commingle An annular row ofperforations 38, having an area determined by experiment, are;

the same; V V

2. Ina burner of the type described, the

combination with a burner tube of a mixing chamber having a convex top containing a pluralityvaof perforations adapted to act as outlets, means for detachably engaging said chamber to-said tube, andprojections extending tangentially V inward from the side wall of said chamberragainst' which a passing stream of gases impinge, said project: tions being positioned adjacentthe extremity ofsaidtuba I I 3. In a burner'of thei-typedescribed,'the combination with afbase and a burner tube removably engaged therewith, of an expanded mixing chamber, means for-1 removably engaging said chamber tosaid tube, said chamber having relatively thin side walls and a perforate convex cap, I and pins 7 extending tangentially into the chamberad A,

prisin in combination with abase having an i'nletfa vertical hollow plug removably rengaged' in said base and a tubular stem 2 circum acentlyrmounted on said-stem, said stem and plug having'opposed registerable opening's,of amixingchamher engageable i with the upperend' of saidfstem, and a'con vexly'curved cap on'said chamber, said cap containing perforations adaptedto" cause the i issuing flames to radiate in all directions.

" 6 A burner "of the 'type"desc'ribed,' comprising in combination with a base ha'ving V a lateral inlet, a hollow v plug erect" at, the

centerof the'base', said-plug havinga shoul 1 7 dered portion and a tubular stern resting 011 said portion revoluble on-the stem, saidjstem and plug having re'gijs'terable lateral openings, of an expanded mixing chamberf're movably en'gaged vvithfthe upper end of said stem, said chamber having a perforate cover,

and means carried within said" chamber passing gases prior to'ignition. v .i

7.111 a -burner of the type described, a mixing chamber comprised of a cylindrical element formed with a convexcover and having a row of perforations directed. an 7 gularly outward through-its walls at the junction of the cover and cylinder, another interj acent row of p erforationsin said cover,

adapted" to interceptand blend streamsof together with a trilobed opening at its center, and a fuel inlet tube upon which said adapted to produce a central concentrated chamber is normally seated. flame surrounded by a plurality of flames of 8. In a burner of the type described, a lesser magnitude. 10 chamber having circular walls and a domed In testimony whereof I have signed my 5 cover, a base having a contracted opening in name to this specification.

said chamber, a fuel inlet tube on which said base rests, and means formed in said cover CHARLES T. KINSMAN. 

